Issued Patents 2004
Showing 26–27 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6680804 | Zoom lens mechanism | Takamitsu Sasaki, Kazunori Ishizuka, Maiko Takashima | 2004-01-20 |
| 6674511 | Evaluation mask, focus measuring method and aberration measuring method | Kenji Konomi | 2004-01-06 |